成果简介：Li4Ti5O12/TiO2/Carbon (Li4Ti5O12/TiO2/C) nanocrystalline composite has been successfully synthesized by a facile sol-gel method and subsequent calcination treatment, and pure Li4Ti5O12, Li4Ti5O12/C and Li4Ti5O12/TiO2 composites have also been synthesized in the present study for comparison. All the samples present a nanocrystalline structure with a uniform size distribution, and abundant phase interfaces can be detected for Li4Ti5O12/TiO2 and Li4Ti5O12/TiO2/C composites. Electrochemical measurements demonstrate that the resultant Li4Ti5O12/TiO2/C composite exhibits a superior rate capability and cycle stability in comparison with pure Li4Ti5O12, Li4Ti5O12/C and Li4Ti5O12/TiO2 composites, which can be attributed to high grain boundary density, abundant phase interfaces and in situ formed carbon, for storing extra lithium ions, enhancing rapid lithium insertion/extraction kinetics and improving electron transport rate.

论文引用方式：Wenjun Zhu, Hui Yang, Wenkui Zhang, Hui Huang, Xinyong Tao, Yang Xia, Yongping Gan and Xingzhong Guo. Synthesis and electrochemical performance of Li4Ti5O12/TiO2/C nanocrystallines for high-rate lithium ion batteries. RSC Advances. 2015, 5, 74774-74782.

论文链接：http://pubs.rsc.org/en/content/articlehtml/2015/ra/c5ra12397f.